Lawn sprinkler



H. E. MENG LAWN SPRINKLER Jan. 31, 1933.

Filed Nov. 7, 1931 Patented Jan. 31, 1933 HARE-Yin. MENG; or OAK PARK,rumors, Assre COMPANY, on onrcaeo,

rumors, a

conrona'rroir orfrmi mors LAWN SPRINKLER t Application filed. November7, 1931.

. This invention relates to lawn and garden sprinklers-and moreparticularly such sprinklers of the fiat spray type. 7

The object of the invention is-to provide a flat spray spinkler fromwhich a spray of uniform length will issue from all points of thesprinkler nozzle. 1

Other objects and advantages of the inventionwillbeunderstoodbyreference to the following specification and accompanyingdrawing,vinwhicha flat spray nozzle embodying a selected form of theinvention is illustrated. In the drawing:- 4

Fig. 1 is a perspective; V v Fig. 2 is a section on a plane extendingthrough the length of the nozzle, and

Fig. 3 is a section on the line 3 3of Fig. 2. .Beferring now to thedrawing, my im proved nozzle includes a hollow body member 5 whichincludes an intake end portion 6 and a flared, fan-shaped front end ormouth portion- 7. The intake end, portion is provided with anenlargement 8 which is interiorly threaded, as indicated at 9, forreceiving a hose connection 10 of suitable form. A rubber or othersuitable washer 11 may be seated on the shoulder 12 for co-operatingwith the hose coupling 10 to provide a leak-proof joint between the hosecoupling and the sprinkler body. v l The body 5 is preferably formed ofcast metal, such as brass or other suitable nonrusting material, and asheet metal sprayhead 13 is mounted on the front end 7 of the body. Asclearly shown in the drawing, the spray-head 13 is provided with aperipheral flange 14c which fits around the marginal front edge portionof the body and facilitates permanent connection of the spray-head andbody by means of soldering or otherwise. The sheet metal spray-head 13is provided with a plurality of apertures 15 which permits streams ofwater to issue from the hol low body 5.

It has been found that, in the absence of some provision to prevent it,the streams which issue from the apertures 15 are longer near theopposite ends of the sprinkler than those which issue from the centrallylocated serial No. 573,616.

openings. Such. v irregularity of the streams is objectionable, and toprevent it and: to cause the streams to be of uniform length. throughoutthe length of the sprayhead, I have provided a pair of metallugs 16 and17 respectively, which are castin tegral with the body'5. f v z T Thelugs 16 and 17 are so shaped and arranged that they provide, insidefaces 18 whi ch are substantially parallel and arranged approximately inalignment with portions of thewall 6. of .the i'nlet opening -As" shownin Fig. 2,.the lugs 16 and 17. are generally of triangular, formation,and in addition to the substantially parallel faces 18, they providefrontfaces 19, which-diverge outwardly and rearwa'rdly from thespray-head 13. Rear faces 20 are .also formed, these faces beingapproximately p arallel to oppositely disposed portions 21" of thespray-head,.as clearly shown'in Fig. 2. The opening in the nozzlebetween the faces 18 of thelugs is of substantially the samecross-sectional areaas the. area of the inlet opening andthe'cross-sectional areas ofthe in the length Q'OR "r0 a. ew nanvmcrnnmespacesbetween therear faces20 of the lugs and the oppositely disposedinside face POT-1 tions 21 of the body member are considerably less thanthe areas of the inlet opening. I

I havefound by actual testing of. the

above-described: structure that it serves to equalize the pressure ofthe-water at all points and that the streams issuare of substanon thespray-head ing through the'apertures 15 tiallyuniform length throughoutthe length of the spray-head. As clearly shown in'the drawing, thespray-head is of elongated,

As is evident from an the lugs 16 and 17 serve, in effect, to divide theinterior of the body narrow proportions; inspection of Fig. 2,

member into a'central passageway and oppo} site end or side passagewaysor chambers. a The above described structure is-susceptible ofbeingchanged in some respects without departing from thespirit of thein'vel'l tion, the scope of which shouldbe determined",

being construed as broadly as possible'consistent with thei state of-'theartff r I by reference to the following claims, thesarne hollow bodymember to through said inlet opening,

I claim as my, invention:

1. A sprinkler comprising an elongated, narrow, multi-aperturedspray-head and a hollow body member to which said head is secured, thebody member being provided with an inlet opening spaced rearwardly fromthe head and located approximately centrally of the length of the head,andmeans ctingsubstantially uniform discharge 6f said head, comprising apair *1 y triangular lugs respectively 1 pposite sides of the path of awater entering said'body through oas to provide a passageway ofsubstantial ly the same size as said inlet opening directly from thelatter to'the central portion of said: head and soas to providereduced-size passageways from said-inlet opening to the opposite sideportionsof said body and head. 2. sprinkler comprising an elongated,narrow, multi-apertu'red spray-head and a I I which said head issecured, the body member being provided with van inlet opening from the,head and located approximately centrally of the'length of thehead, andmeans for effecting substantially'uniform discharge of water through theopenings throughout the length of said head and comprising a pair oflugsin said head at opposite sides of the path-of a stream of waterentering said head I said lugs having inside faces substantially alignedwith portions ofthe wall of said inlet openings, the front endsof saidlugs beingdisposed closely adjacent saidfhead and the rear portions ofsaidlugs being spaced materially from the rear. Wall of the body membersoas to provide passageways from said inlet opening to the opposite sideportions of said: body, saidlugs being tapered laterally from saidfront'and rear ends in formation, so as to provide restrictedpassubstantiaslly triangular sages at the front and rear ends thereof.

\ 3. ;A sprinkler comprising an elongated,

5 narrow, multi-apertured spray-head and a cated; oni opposite v. streamof waterentering said head through 'said inlet opening, each of saidlugs being I substantially in alignment with a portion of hollow bodymember. to which said head "is secured, the body member being provided"with an inlet opening spaced rearwardly of thehead, and means length ofsaid head, comprising a pair ofvsubstantially, triangular lugsrespectively losides of the path of a shaped-to provide an insidewall-disposed thewall of "the inlet opening, avfront wall divergingrearwardly and outwardly from said head,-and'a rear wall spaced from anough the openings throughoutv said lugs being positioned spacedrearwardly and located approximately 4. A sprinkler comprising asubstantially h tubular inlet portion having an inlet openingtherein,and a spray head communicating" therewith, said spray head extendingforwardly and laterally on oppositesides. of said inletv portion to forman elongated narrow chamber, said chamber being bounded by side walls,amulti-apertured front wall, and opposite and similar rear wallsdiverging from said'inlet opening to the extremities of being soarsaidfront wall, said rear walls ranged that said'chamber tapersfromamaximum depth adjacent said inlet portion to a relativelyshallowfminimum depth; adjacent the extremities of said chamber, and apair of bafiles secured in said chamber to said side walls, said baflieshaving faces on opposite sides of acentral passageway defined'by them inprolongation of said inlet and terminatin contiguous t'o said frontwall, each of said lugs also having a face spaced from and substantially parallel to one of said rearwall's so as to provide arestricted passageway therebetween, and a face joining said'lastmentioned face and contiguous at its other end to said front walladjacentsaid central pas sageway. o I Y 5. A sprinkler comprising asubstantially tubular inlet portion having an inlet opening therein, anda spray head communicating therewith, said spray'headextending'forwardly and. laterally on opposite sides of said inletportion to form an elongated narrow chamber, said chamber being boundedby side walls, a multi-apertured front wall, and opposite and similarrear walls diverging from said inlet opening to the extremities of Iwalls being so arsaid front wall, said rear ranged that said chambertapers from a maximum depth adjacent said inlet portion to a relativelyshallow minimum depth adjacent the extremities'of said chamber, and apair of baflles secured in said chamber to said side walls, said bafileshaving faces on opposite sides of a central passageway defined by themin prolongation of said inlet and terminating contiguous to said frontwall, each of said lugs also having a face spaced from' andsubstantially parallel to one of said'rear- Walls so as to provide arestricted passageway therebetween, and a face joining said lastmentioned face at a rounded vertex and con tiguous at-its other end tosaid front wall adjacent said central passageway.

HARRY E. MENG.

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